<template>
  <div id="pictureDetailPage">
    <a-row :gutter="[16, 16]">
      <!-- 图片展示区 -->
      <a-col :sm="24" :md="16" :xl="18">
        <a-card title="图片预览">
          <a-image
            style="max-height: 600px; object-fit: contain"
            :src="picture.url"
          />
        </a-card>
      </a-col>
      <!-- 图片信息区 -->
      <a-col :sm="24" :md="8" :xl="6">
        <a-card title="图片信息">
          <a-descriptions :column="1">
            <a-descriptions-item label="作者">
              <a-space>
                <a-avatar :size="24" :src="picture.user?.userAvatar" />
                <div>{{ picture.user?.userName }}</div>
              </a-space>
            </a-descriptions-item>
            <a-descriptions-item label="名称">
              {{ picture.name ?? '未命名' }}
            </a-descriptions-item>
            <a-descriptions-item label="简介">
              {{ picture.introduction ?? '-' }}
            </a-descriptions-item>
            <a-descriptions-item label="分类">
              {{ picture.category ?? '默认' }}
            </a-descriptions-item>
            <a-descriptions-item label="标签">
              <a-tag v-for="tag in picture.tags" :key="tag">
                {{ tag }}
              </a-tag>
            </a-descriptions-item>
            <a-descriptions-item label="格式">
              {{ picture.picFormat ?? '-' }}
            </a-descriptions-item>
            <a-descriptions-item label="宽度">
              {{ picture.picWidth ?? '-' }}
            </a-descriptions-item>
            <a-descriptions-item label="高度">
              {{ picture.picHeight ?? '-' }}
            </a-descriptions-item>
            <a-descriptions-item label="宽高比">
              {{ picture.picScale ?? '-' }}
            </a-descriptions-item>
            <a-descriptions-item label="大小">
              {{ formatSize(picture.picSize) }}
            </a-descriptions-item>
          </a-descriptions>
          <a-button type="primary" @click="doDownload" style = "margin-right: 10px">
            免费下载
            <template #icon>
              <DownloadOutlined />
            </template>
          </a-button>
          <a-space wrap>
            <a-button v-if="canEdit" type="default" @click="doEdit">
              编辑
              <template #icon>
                <EditOutlined />
              </template>
            </a-button>
            <a-button v-if="canEdit" danger @click="doDelete">
              删除
              <template #icon>
                <DeleteOutlined />
              </template>
            </a-button>
          </a-space>

        </a-card>
      </a-col>
    </a-row>


  </div>
</template>


<script setup lang="ts">
import {computed, ref, reactive, onMounted} from 'vue'
import {
  deletePictureUsingPost,
  getPictureVoByIdUsingGet,
} from '@/api/pictureController.ts'
import {DownloadOutlined, EditOutlined, DeleteOutlined} from "@ant-design/icons-vue"
import {message} from "ant-design-vue";
import {formatSize, downloadImage} from "@/utils/index.ts"
import {useLoginUserStore} from "@/stores/useLoginUserStore.ts";
import { useRouter }  from 'vue-router'


const router = useRouter()

const doDownload = () =>{
  downloadImage(picture.value.url)
}


const props = defineProps<{
  id: string | number
}>()


const picture = ref<API.PictureVO>({})

const fetchPictureDetail = async () =>{
  try{
    const res = await  getPictureVoByIdUsingGet({
      id: props.id
    })
    if(res.data.code === 200 && res.data.data){
      picture.value = res.data.data
    }else{
      message.error("获取图片详情失败" + res.data.message)
    }
  }catch (e: any){
    message.error("获取图片详情失败" + e.message)
  }
}


onMounted( () => {
   fetchPictureDetail()

})


const loginUserStore = useLoginUserStore()
// 是否具有编辑权限
const canEdit = computed(() => {
  const loginUser = loginUserStore.loginUser;
  // 未登录不可编辑
  if (!loginUser.id) {
    return false
  }
  // 仅本人或管理员可编辑
  const user = picture.value.user || {}
  return loginUser.id === user.id || loginUser.userRole === 'admin'
})

// 编辑
const doEdit = () => {
  router.push({
    path: '/add_picture',
    query: {
      id: picture.value.id,
      spaceId: picture.value.spaceId
    }
  })
}

// 删除
const doDelete = async () => {
  const id = picture.value.id
  if (!id) {
    return
  }
  const res = await deletePictureUsingPost({ id })
  if (res.data.code === 200) {
    message.success('删除成功')
  } else {
    message.error('删除失败')
  }
}


</script>
<style scoped>


</style>
